Open hole counterbalanced lift check valve

Abstract

The embodiment of the utility model relates to a kind of open hole type pair of clamps lift check valve, valve body is set on open hole type pair of clamps lift check valve;Valve cover is set on the top of valve body;Lift check structure is set on valve body, open and close open hole type pair of clamps lift check valve by the lift movement of lift check structure to control the pressure action of medium, prevent medium backflow, with the advantages of simple installation, compact structure, good sealing performance, in prior art, the installation mode of check valve is more complex, needs to occupy larger space, it is more difficult to install and replace in space limited pipeline system, and its sealing performance is susceptible to the influence of medium scouring, wear and tear and other factors after long-term use, leading to sealing failure, the problem of medium leakage occurs, not only will cause the waste of medium, also possibly cause the technical problem of security risk.

Description

Technical Field

[0001] The embodiments of this utility model relate to a valve, and more particularly to an open-type clamp lift check valve. Background Technology

[0002] In industrial media conveying systems, check valves, as a key type of valve, play an important role in preventing backflow of media and are indispensable for ensuring the stable operation of the system and protecting equipment from damage caused by backflow.

[0003] In existing technologies, the installation of check valves is relatively complex and requires a large amount of space. Installation and replacement are difficult in space-constrained piping systems. Moreover, their sealing performance is easily affected by factors such as media erosion and wear after long-term use, leading to seal failure and media leakage. This not only wastes the media but may also cause safety hazards. Utility Model Content

[0004] The purpose of this utility model is to provide an open-type clamp-type lifting check valve that is easy to install, has a compact structure, and good sealing performance.

[0005] To achieve the above objectives, an embodiment of this utility model designs an open-type clamp-type lifting check valve, comprising:

[0006] The valve body is provided on the open-type clamp lifting check valve;

[0007] A valve cover is provided above the valve body;

[0008] A lifting check structure is provided on the valve body. The lifting check structure is controlled by the pressure of the medium to open and close the open-hole type wafer lifting check valve and prevent the medium from flowing back.

[0009] Furthermore, in the open-type clamp-type lifting check valve of this utility model, the lifting check structure includes:

[0010] Valve disc, wherein the valve disc is provided on the valve body;

[0011] A spring is provided around the valve disc;

[0012] A guide sleeve is provided above the spring.

[0013] Furthermore, in the open-type clamping lifting check valve of this utility model, the guide sleeve includes:

[0014] A recessed hole is provided inside the guide sleeve;

[0015] A reinforcing rib is provided inside the recessed hole.

[0016] Furthermore, in the open-type clamping lift check valve of this utility model, a channel inlet is provided inside the valve body, and a channel outlet is provided inside the valve body.

[0017] Furthermore, in the open-type clamping lifting check valve of this utility model, a through hole is provided in the valve disc.

[0018] Furthermore, in the open-type clamp lifting check valve of this utility model, a pressure relief hole is provided on the valve disc.

[0019] Furthermore, in the open-type clamping lift check valve of this utility model, a sealing ring is provided between the valve cover and the valve body.

[0020] Furthermore, in the open-type clamping lift check valve of this utility model, the valve cover and the valve body are fixedly connected by bolts.

[0021] Furthermore, in the open-type clamp lifting check valve of this utility model, a first interface and a second interface for clamp connection are provided at both ends of the valve body.

[0022] Compared with the prior art, the present invention adopts a valve body on an open-type wafer lift check valve; a valve cover is installed on the top of the valve body; and a lift check structure is installed on the valve body. The lifting and lowering movement of the lift check structure is controlled by the pressure of the medium to open and close the open-type wafer lift check valve, preventing backflow of the medium. It has the advantages of simple installation, compact structure, and good sealing performance. It solves the problems of the prior art, where the installation of check valves is relatively complicated, requires a large space, and is difficult to install and replace in space-constrained pipeline systems. Moreover, its sealing performance is easily affected by factors such as medium erosion and wear after long-term use, leading to sealing failure and medium leakage. This not only wastes the medium but may also cause safety hazards. Attached Figure Description

[0023] Figure 1 This is the front view of the present invention;

[0024] Figure 2 This is a partially enlarged view of the lifting check structure of this utility model;

[0025] Figure 3 This is a top view of the guide sleeve of this utility model. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0027] The present invention relates to an open-type clamp-type lifting check valve, such as... Figure 1 , Figure 2 and Figure 3 As shown, it includes:

[0028] In this embodiment, the open-type clamp lifting check valve is provided with a valve body 1. The valve body 1 is the main component of this embodiment and plays the role of fixing and supporting other parts.

[0029] A valve cover 5 is provided above the valve body 1, and the valve cover 5 is a component of this embodiment;

[0030] A lifting check structure 20 is provided on the valve body 1. The lifting and lowering movement of the lifting check structure 20 is controlled by the pressure of the medium to open and close the open-hole type wafer lifting check valve and prevent the medium from flowing back.

[0031] In this embodiment, a lifting check structure 20 is provided on the valve body 1. The lifting check structure 20 is controlled by the pressure of the medium to open and close the open-type wafer lifting check valve, preventing backflow of the medium. It has the advantages of simple installation, compact structure, and good sealing performance. It solves the problems in the prior art where the installation of check valves is relatively complicated, requires a lot of space, and is difficult to install and replace in space-constrained pipeline systems. Moreover, its sealing performance is easily affected by factors such as medium erosion and wear after long-term use, leading to sealing failure and medium leakage. This not only wastes the medium but may also cause safety hazards.

[0032] To achieve the above-mentioned technical effects, such as Figure 1 and Figure 2 As shown, the lifting check structure 20 includes:

[0033] A valve disc 2 is installed on the valve body 1. The valve disc 2 is the core component for realizing the check function. The flow of the medium is controlled by controlling the lifting and lowering movement of the valve disc 2. When the medium flows in the normal direction, the valve disc 2 is pushed up by the pressure of the medium, allowing the medium to pass through the valve and ensuring the normal medium transportation of the system. When the medium tends to flow in the opposite direction, the valve disc 2 is subjected to the combined action of the medium pressure and the weight of the valve disc 2, causing the valve disc 2 to close quickly and fit tightly against the valve body 1, cutting off the backflow path of the medium, preventing medium leakage, and ensuring the safe and stable operation of the entire medium transportation system.

[0034] A spring 3 is installed around valve disc 2. When the medium flows forward, the medium pressure overcomes the elastic force of spring 3, causing valve disc 2 to open. When the medium tends to flow backward, the forward pressure decreases, and the elastic force of spring 3 quickly pushes valve disc 2 to close. Spring 3 provides additional closing force, allowing valve disc 2 to quickly adhere to the valve seat of the valve body in a short time, effectively preventing medium backflow. In addition, spring 3 always applies a downward pressure to valve disc 2, ensuring that valve disc 2 can fit tightly against valve body 1 in the closed state, guaranteeing the sealing between valve disc 2 and valve body 1, and preventing medium leakage.

[0035] A guide sleeve 4 is provided above the spring 3. The guide sleeve 4 can ensure the stable operation of the spring 3, prevent it from shifting or twisting during extension and retraction, maintain the normal elastic force acting on the valve disc 2, and extend the life of the spring. The guide sleeve 4 can guide the movement direction of the valve disc 2, so that the valve disc 2 rises and falls in a straight line and fits precisely with the valve body 1, thereby improving the sealing performance of the valve. The guide sleeve 4 can also protect the spring and the valve disc and prevent external impurities from entering.

[0036] To achieve the above-mentioned technical effects, such as Figure 3 As shown, guide sleeve 4 includes:

[0037] A recessed hole 10 is provided inside the guide sleeve 4. The recessed hole 10 can reduce the overall weight of the guide sleeve 4, reduce material consumption, and lower costs.

[0038] A reinforcing rib 9 is provided inside the recess 10. The reinforcing rib 9 can enhance the structural strength of the guide sleeve 4, so that the guide sleeve 5 is not easily deformed or damaged when subjected to the extension force of the spring 3 and the impact force of the valve disc 2, ensuring the accurate movement direction of the valve disc 2 and ensuring the stable operation of the spring 3.

[0039] To achieve the above-mentioned technical effects, such as Figure 1 As shown, a channel inlet 12 is provided inside the valve body 1, and a channel outlet 13 is provided inside the valve body 1. The channel inlet 12 is used for the medium to flow in, and the channel outlet 13 is used for the medium to flow out.

[0040] To achieve the above-mentioned technical effects, such as Figure 1 As shown, a through hole 11 is provided in the valve disc 2, and the through hole 11 is used for the flow of the medium.

[0041] To achieve the above-mentioned technical effects, such as Figure 1 As shown, a pressure relief hole 8 is provided on the valve disc 2. When the valve is closed quickly, the pressure relief hole 8 can discharge part of the medium from the valve disc 2 in time, balance the pressure on both sides of the valve disc 2, prevent the valve disc 2 from being damaged by pressure shock, ensure the stable operation of the valve, and extend its service life.

[0042] To achieve the above-mentioned technical effects, such as Figure 1 As shown, a sealing ring 6 is provided between the valve cover 5 and the valve body 1. The sealing ring 6 is used to seal the space between the valve cover 5 and the valve body 1 to prevent media leakage.

[0043] To achieve the above-mentioned technical effects, such as Figure 1 As shown, the valve cover 5 and the valve body 1 are fixedly connected by bolts 7.

[0044] To achieve the above-mentioned technical effects, such as Figure 1 As shown, a first interface 15 and a second interface 14 for clamp connection are provided at both ends of the valve body 1. The open-hole clamp lift check valve is placed between two pipe flanges, and then the two flanges and the first interface 15 and the second interface 14 on the valve are clamped together tightly with bolts. This installation method does not require machining a large number of bolt holes on the valve body, which simplifies the structure of the valve body and facilitates the installation and disassembly of the valve.

[0045] Wafer connections require matching wafer flanges. These flanges are matched with the inlet and outlet dimensions of the valve. Through the tightening force of the bolts, the valve and the pipeline form a tight connection, ensuring the sealing and stability of the pipeline system. Wafer connections have the advantages of easy installation and compact structure, which can greatly save installation space.

[0046] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.

Claims

1. An open-hole type clamp-on lifting check valve, characterized in that, include: The valve body is provided on the open-type clamp lifting check valve; A valve cover is provided above the valve body; A lifting check structure is provided on the valve body. The lifting check structure is controlled by the pressure of the medium to open and close the open-hole type wafer lifting check valve and prevent the medium from flowing back.

2. The open-type clamp-type lifting check valve according to claim 1, characterized in that, The lifting check structure includes: Valve disc, wherein the valve disc is provided on the valve body; A spring is provided around the valve disc; A guide sleeve is provided above the spring.

3. The open-type clamp-type lifting check valve according to claim 2, characterized in that, The guide sleeve includes: A recessed hole is provided inside the guide sleeve; A reinforcing rib is provided inside the recessed hole.

4. The open-type clamp-type lifting check valve according to claim 1, characterized in that, A channel is provided inside the valve body, with one side of the channel being the inlet and the other side being the outlet.

5. The open-type clamp-type lifting check valve according to claim 2, characterized in that, A through hole is provided inside the valve disc.

6. The open-type clamp-type lifting check valve according to claim 2, characterized in that, A pressure relief hole is provided on the valve disc.

7. The open-type clamp-type lifting check valve according to claim 1, characterized in that, A sealing ring is provided between the valve cover and the valve body.

8. The open-type clamp-type lifting check valve according to claim 1, characterized in that, The valve cover and the valve body are fixedly connected by bolts.

9. The open-type clamp-type lifting check valve according to claim 1, characterized in that, A first interface and a second interface for clamp connection are provided at both ends of the valve body.

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